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-rw-r--r--eclass/acct-user.eclass3
1 files changed, 2 insertions, 1 deletions
diff --git a/eclass/acct-user.eclass b/eclass/acct-user.eclass
index 0ce7545cd1c5..c2e643332ccc 100644
--- a/eclass/acct-user.eclass
+++ b/eclass/acct-user.eclass
@@ -108,7 +108,8 @@ readonly ACCT_USER_NAME
# @REQUIRED
# @DESCRIPTION:
# List of groups the user should belong to. This must be a bash
-# array.
+# array. The first group specified is the user's primary group, while
+# the remaining groups (if any) become supplementary groups.
# << Boilerplate ebuild variables >>